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Late Season Weed Scouting Boosts Yields

Late Season Weed Scouting Boosts Yields
Sep 23, 2025
By Farms.com

Scouting fields now protects future harvest gains

As harvest approaches, many farmers focus on crop yields and harvest logistics, but late season weed management is just as important. Scouting fields now can reduce weed seed spread and improve next year’s herbicide program, protecting future yields and return on investment. 

Agronomists note that weeds like kochia and waterhemp remain challenges in corn and soybean fields. If left unchecked, these weeds spread seeds that create bigger problems next year. Winter annuals can also host insects and diseases, adding to the importance of timely scouting. 

Farmers are encouraged to mark areas with weed escapes and evaluate why they occurred. Was it a sprayer miss, the wrong chemistry or adjuvant, or timing issues? Identifying these factors helps plan better herbicide strategies for the next season. 

Field observations guide fall herbicide applications, which provide a clean start for spring. Fall residual herbicides can stay active through winter and activate with snowmelt, giving crops early protection when spring weather delays applications. 

Experts stress the value of a tailored plan for every field. Each field has unique challenges, and a strong crop plan, including diverse modes of action, helps maintain control and protect yields. 

Strategic scouting and recordkeeping now allow growers to adjust tank mixes, timing, and chemistry for 2026. By acting this fall, farmers gain a valuable head start, reduce early season weeds, and improve long-term profitability. 

Photo Credit: gettyimages-fertnig


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